| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_52aa679f3fd77d6125bcf31c40e9ac3c |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P10-20 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C22B15-0076
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D11-0288
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C22B15-0071
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C22B11-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D11-028
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C22B1-11
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C22B3-24
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D11-0257
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C22B3-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C22B3-44
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C22B11-08 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D11-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22B3-20
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22B3-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22B30-04 |
| filingDate |
2019-11-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_b3e1dc9369042102c5f62a6455a52964
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_941192471122b85113290c8402da1e3b |
| publicationDate |
2020-11-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
BG-113021-A |
| titleOfInvention |
OXIDATIVE LEVING UNDER SULFIDE RAW MATERIAL UNDER LOW SOLID CONTENT AND LOW ACIDITY |
| abstract |
Process for extracting copper and / or silver from sulphide raw material containing iron, arsenic, copper and silver by oxidizing under pressure an aqueous suspension of sulphide raw material in a pressure vessel to form a liquid phase containing free sulfuric acid and aqueous copper sulphate and for precipitating arsenic as solid iron-arsenic compounds. The process involves operating the pressure vessel at a sufficiently low solids content to maintain the free acid level below 30 g / L in the liquid phase and to provide sufficient heat to maintain the temperature in the pressure vessel above 200 °. C. The copper metal is recovered from the liquid phase and / or the silver can be recovered from the solids by cyanide leaching without the need for a erosive degradation step. |
| priorityDate |
2017-04-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |